Kammerton KAH-mer-to(h)ne Your browser does not support the audio element. [ German , chamber pitch ] Definition The pitch system used for instruments in Germany during the Baroque period. In this system, A4 was probably about 410-425 Hz as opposed to its modern frequency of 440 Hz. Share Share on Facebook (opens in a new tab) Share on X (opens in a new tab) Last Updated: 2013-02-14 19:13:24